NC0023868_Additional Monitoring Requirement_20231003

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ROY COOPER
Governor , a' `
ELIZABETH S.BISER 4�
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
October 3,2023
Mr. Robert Patterson,Jr.
Water Resources Director
City of Burlington
P.O. Box 1358
Burlington,North Carolina 27216
Subject: Additional Monitoring Requirement
Permit NC0023868
East Burlington WWTP
Alamance County
Dear Mr. Patterson:
As you are aware, the state has been sampling and investigating sources of 1,4-Dioxane in the Cape Fear
River Basin. Recent data from the South Burlington WWTP have shown intermittently high levels of this
contaminant. Pursuant to 15A NCAC 02B .0505 and.0508,the Division is requiring Burlington to sample
for 1,4-Dioxane in their East plants' effluent once per month using EPA Test Method 624.1 promulgated
in the 2017 Methods Rule Update.
Monthly effluent grab sampling for the East Burlington WWTP NC0023868 shall commence in November
2023 and results shall be submitted on each POTW's Discharge Monitoring Reports.
To discuss test procedures or find a lab certified to perform this test method please contact Todd Crawford
at 919-733-3908 or via e-mail at [e-mail].
If you have any questions, please contact me at (919) 707-3624 or at my email address
michael.montebelloadeq.nc.gov.
Sincerely,
ADocusipnad by:
EA
A.,-i. '--
C464531431644FE
for Michael Montebello,NPDES Permitting Branch I
Division of Water Resources,NCDEQ
cc: Richard E. Rogers,Director,DWR
Julie Grzyb,Deputy Director,DWR
Ben Bani, City of Burlington, Assistant Water Resources Director — Plant Operations,
[e-mail]
Todd Crawford, Laboratory Certification Branch,DWR
Lon Snider and Jenny Graznak,Winston-Salem Regional Office, DWR
Gray Perlmutter,NPDES Municipal Unit,DWR
Q North Carolina Department of Environmental Quality I Division of Water Resources
5l2 North Salisbury SVeet 1161 l Mail Service Center I Raleigh.North Carolina 27699-1 61 1
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ai.r.n a f�.wnr owMr 919.707.9000